Geissele Automatics MK4, Super Modular Rail, Handguard, 15", M-LOK, Barrel Nut Wrench Sold Separately (GEI-02-243), Gas Block Not Included, Black 05-315B
Geissele Automatics MK4, Super Modular Rail, Handguard, 15", M-LOK, Barrel Nut Wrench Sold Separately (GEI-02-243), Gas Block Not Included, Black 05-315B